I have two types of lojack systems in my car. The first one works off a key fob. If the fob is farther than 10 feet from the car and the car is moved more than 10 feet, the lojack system calls the company and they call me and ask if I know where the car is. The second lojack system is a GPS program. I know it works because I took the car in for some work and forgot to leave the fob. They moved the car about 15 feet and the system notified the company and they called me. I had to take the fob to the repair shop so they could move the car around
